煤气管道上的排水器有什么作用？
参考答案：
是连续不断地排除管道中从煤气中析出的机械水、冷凝水和污物，以保证管道畅通，正常输气。
Max is hardworking, cheerful, and ________ honest. [ ]
A. after all
B. first of all
C. on the whole
D. above all
Giselle Holt is a staff of the Professional Conduct Program of CFA Institute. In order to be compliance with the Code of Ethics and Standards of Professional Conduct, Holt is most directly responsible for which of the following activities（）
A. conducting investigations on CFA members or candidates who may have violated the Code of Ethics and Standards of Professional Conduct.
B. conducting hearing panel relating to proposed sanctions on CFA members or candidates.
C. updating the code of ethics and the professional conduct annually to ensure they are effective.
